Oxygen is produced as a by-product of photosynthesis. The build-up of oxygen inside a cell can actually be toxic.

Question

Which of the following is the method used by plant cells to remove excess oxygen?

Question 4 options:

osmosis

simple diffusion

active transport

exocytosis

Answer 1

The method used by plant cells to remove excess oxygen is exocytosis.

During photosynthesis, oxygen is produced and can accumulate in the cell. Exocytosis is the process by which cells transport molecules out of the cell by enclosing them in a vesicle that then fuses with the plasma membrane, releasing the contents outside the cell. This process helps in managing and eliminating excess oxygen effectively.